ok application crash. It's still a crash. I guess a Linux crash is when the kernel crashes because the kernel is Linux, not the OS.

I think the problem I have here, might be that the real time kernel I use is grabbing all available memory which is causing the hangs. I use facebook for online gaming mostly (Mafia Wars) and I have 5353 friends on facebook. I regularly open ten or more tabs, accepting gifts etc and eventually it just hangs, and ctrl alt f2 doesn't even work. So thatis a Linux crash right?

ok application crash. It's still a crash. I guess a Linux crash is when the kernel crashes because the kernel is Linux, not the OS.

I think the problem I have here, might be that the real time kernel I use is grabbing all available memory which is causing the hangs. I use facebook for online gaming mostly (Mafia Wars) and I have 5353 friends on facebook. I regularly open ten or more tabs, accepting gifts etc and eventually it just hangs, and ctrl alt f2 doesn't even work. So thatis a Linux crash right?

From Alex.

ps does FireFox multi-thread yet? Even IE9 (hisses) multi-threads...

In your OP you said

Make sure you have the GNOME 2.32 System Monitor running; or similar.alt tab until cycle to System Monitor app

If the kernel (Linux) had crashed you would not be able to do that.

As for multi threading I don't know or care... on the whole FF just works for me 30 tabs open minimum mainly text with the odd video tutorial left for reference.